LX1801

www.DataSheet4U.com LX1801 "SPARK" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET DESCRIPTION KEY FEATURES Low peak current consumption: <2mA 3V operation 2 Small form factor: 1.45mm Double/single output voltage option Solder bumped die The MSC-LX1801 is the IC1 "Spark" for the MED427A-1 module. The "Spark" chip has an oscillator, a voltage doubler, and a level shifter. The oscillator is a "555" timer variant where the external resistor (Rref) determines the frequency. The voltage doubler increases the output (OUT) of the oscillator by a factor of 2 (times VDDLO). The voltage doubler also provides a single output voltage if disabled (EN2x). This level shifter shifts voltage inputs from the lower voltage (VDDlo) to the higher voltage (VDDhi). W W W. Microsemi . COM IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com BLOCK DIAGRAM EN2X VDDlo Ref RREF ENhi VDDhi ENlo VSS Voltage Doubler 2x OUThi Oscillator VSS VDDlo Level Shifter OUTlo Simplified Block Diagram LX1801 TJ (°C) 10 to 55 PACKAGE ORDER INFO Package Number LX1801 Copyright  2001 Rev. 0.2b, 2002-06-17 Microsemi Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541 1 LX1801 "SPARK" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET ABSOLUTE MAXIMUM RATINGS Input Upper Supply Voltage (VDDhi)........................................................ 0.0V to +20.0V Input Lower Supply Voltage (VDDlo) .......................